If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2x2 + -8x + -90 = x Reorder the terms: -90 + -8x + 2x2 = x Solving -90 + -8x + 2x2 = x Solving for variable 'x'. Reorder the terms: -90 + -8x + -1x + 2x2 = x + -1x Combine like terms: -8x + -1x = -9x -90 + -9x + 2x2 = x + -1x Combine like terms: x + -1x = 0 -90 + -9x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -45 + -4.5x + x2 = 0 Move the constant term to the right: Add '45' to each side of the equation. -45 + -4.5x + 45 + x2 = 0 + 45 Reorder the terms: -45 + 45 + -4.5x + x2 = 0 + 45 Combine like terms: -45 + 45 = 0 0 + -4.5x + x2 = 0 + 45 -4.5x + x2 = 0 + 45 Combine like terms: 0 + 45 = 45 -4.5x + x2 = 45 The x term is -4.5x. Take half its coefficient (-2.25). Square it (5.0625) and add it to both sides. Add '5.0625' to each side of the equation. -4.5x + 5.0625 + x2 = 45 + 5.0625 Reorder the terms: 5.0625 + -4.5x + x2 = 45 + 5.0625 Combine like terms: 45 + 5.0625 = 50.0625 5.0625 + -4.5x + x2 = 50.0625 Factor a perfect square on the left side: (x + -2.25)(x + -2.25) = 50.0625 Calculate the square root of the right side: 7.075485849 Break this problem into two subproblems by setting (x + -2.25) equal to 7.075485849 and -7.075485849.Subproblem 1
x + -2.25 = 7.075485849 Simplifying x + -2.25 = 7.075485849 Reorder the terms: -2.25 + x = 7.075485849 Solving -2.25 + x = 7.075485849 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.25' to each side of the equation. -2.25 + 2.25 + x = 7.075485849 + 2.25 Combine like terms: -2.25 + 2.25 = 0.00 0.00 + x = 7.075485849 + 2.25 x = 7.075485849 + 2.25 Combine like terms: 7.075485849 + 2.25 = 9.325485849 x = 9.325485849 Simplifying x = 9.325485849Subproblem 2
x + -2.25 = -7.075485849 Simplifying x + -2.25 = -7.075485849 Reorder the terms: -2.25 + x = -7.075485849 Solving -2.25 + x = -7.075485849 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.25' to each side of the equation. -2.25 + 2.25 + x = -7.075485849 + 2.25 Combine like terms: -2.25 + 2.25 = 0.00 0.00 + x = -7.075485849 + 2.25 x = -7.075485849 + 2.25 Combine like terms: -7.075485849 + 2.25 = -4.825485849 x = -4.825485849 Simplifying x = -4.825485849Solution
The solution to the problem is based on the solutions from the subproblems. x = {9.325485849, -4.825485849}
| 3x+2[5x+4]=86 | | 3.5+(x+2.7)= | | 73=19+6r | | 8(s-10)=-148 | | 9t+8=-92 | | -4(3x-2)=-6x+2 | | -4x+10x=-24 | | x=11.5+-2.5y | | 6x+19=5x+30 | | 7x+2[2x+11]=110 | | 3x^3=16x+12 | | 8abc-7b-tc+8=5b+5c+1 | | 2(6e+5)-8=6 | | (x-8)(x+18)=(x-12)(x-12)+34x-288 | | 2x+6-X=12 | | x^2-2(1+i)x+(2i-1)=0 | | (x-8)(x+18)=(x-12)(x-12) | | -8(u-6)=7u+3 | | 57=3(19-2) | | 2(x-8)(x+18)=2(x-12)(x-12) | | f(-2)=16 | | 8(u-6)=7u+3 | | 11+9*(11-6)= | | 3y-5x=-19 | | 2x+1.4=7.2 | | 2x-36=3x | | 2+1.4=7.2 | | (22+7)(3)=33 | | n/6-1/5=1/3 | | 18=9b+4b | | 5y+4-2y=4 | | 11+9x(11-6)= |